JP2009078842A - Cap for container - Google Patents

Cap for container Download PDF

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JP2009078842A
JP2009078842A JP2007249559A JP2007249559A JP2009078842A JP 2009078842 A JP2009078842 A JP 2009078842A JP 2007249559 A JP2007249559 A JP 2007249559A JP 2007249559 A JP2007249559 A JP 2007249559A JP 2009078842 A JP2009078842 A JP 2009078842A
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liner
cap
container
container mouth
gas barrier
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JP4994172B2 (en
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Daisuke Tsuchimoto
大輔 土本
Hiroaki Kikuchi
裕昭 菊地
Shinji Odajima
慎次 小田嶋
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Nippon Closures Co Ltd
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Japan Crown Cork Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To obtain a cap with a liner structure provided with superior opening and gas barrier characteristics, by increasing gas barrier characteristics without causing increase in the opening torque. <P>SOLUTION: A liner 10 to be installed on the inside face of a cap top wall comprises the first liner part 11, made of the first liner material whose part contacting at least the outer side in the thickness direction of the opening top of a container is slippery and the second liner part 12, made of the second liner material which covers the whole face of the opening of the container and whose part contacting the inner side in the thickness direction of the opening top of the container, has superior gas barrier characteristics than those of the first liner material. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、合成樹脂製ボトル・ガラス製ボトル・金属製ボトル等の容器の口部を密封するための合成樹脂製または金属製のキャップに関し、特にキャップ天壁内面にライナーを有し、密封性及びガスバリア性に優れた容器用のキャップに関する。   The present invention relates to a synthetic resin or metal cap for sealing a mouth of a container such as a synthetic resin bottle, a glass bottle, or a metal bottle, and in particular, has a liner on the inner surface of the cap top wall and has a sealing property. And a cap for a container excellent in gas barrier properties.

従来、容器用のキャップ（以下、単にキャップという。）の密封性を高める手段としてキャップ天壁内面にライナーを設けてボトル口頂部とライナーが圧接することにより、ボトル口頂部とキャップ天面との隙間を密封し、内容液の漏洩を防ぐと共に内外からのガスの透過を防いでいる。また、特に合成樹脂キャップの場合は、天壁内面全体を覆うようにライナーを設けることによって、キャップ天壁のパネル面からのガスの透過も防止して、密封性・ガスバリア性を高め内容物の劣化を防止している。従来ライナー材として、軟質ポリエチレン等の比較的軟質の合成樹脂が使用されているが、ライナーを設けることによって、容器口頂部とライナーとの摩擦抵抗が強くなり、開栓が困難になるので、従来ライナー材に滑剤を含有させて摩擦抵抗を低減させるようにしている（例えば、特許文献１参照）。また、最近ではより柔らく滑り性がよいライナー材として、水添スチレン系熱可塑性エストラマーであるＳＥＢＳ（スチレン−エチレン−ブチレン−スチレン）が、特に炭酸飲料の場合、内圧上昇によるキャップの変形に対する追従性がよく密封性が高く、且つ開栓性が良いライナー材として広く使用されている。しかしながら、ＳＥＢＳ等は、ガスバリア性が低く、ガスバリア性が要求される用途には不向きである。   Conventionally, as a means for enhancing the sealing performance of a cap for a container (hereinafter simply referred to as a cap), a liner is provided on the inner surface of the cap top wall, and the bottle top and the liner are in pressure contact with each other. The gap is sealed to prevent leakage of the contents liquid and the permeation of gas from inside and outside. In particular, in the case of a synthetic resin cap, by providing a liner so as to cover the entire inner surface of the top wall, gas permeation from the panel surface of the cap top wall can also be prevented, and the sealing and gas barrier properties can be improved. Prevents deterioration. As a conventional liner material, a relatively soft synthetic resin such as soft polyethylene is used. However, providing a liner increases the frictional resistance between the container top and the liner, making it difficult to open the bottle. The liner material contains a lubricant to reduce the frictional resistance (see, for example, Patent Document 1). Recently, SEBS (Styrene-Ethylene-Butylene-Styrene), a hydrogenated styrene-based thermoplastic elastomer as a liner material that is softer and more slidable, especially in the case of carbonated beverages, follows the deformation of the cap due to an increase in internal pressure. It is widely used as a liner material that has good properties, high sealing properties, and good openability. However, SEBS and the like have low gas barrier properties and are not suitable for applications that require gas barrier properties.

そこで、酸素や炭酸ガスのバリア性を改善したライナー材が、種々提供されている（例えば特許文献２〜４参照）。しかしながら、これらのライナー材は、摩擦係数が大きいために、キャップが閉まり難く、また開け難いという欠点があり、キャップの性能面で問題がある。さらに、例えば現在バスリア性が良いライナー材として開発が行なわれているＩＢＳ（ポリスチレン−ポリイソブチレン−ポリスチレンブロック共重合体）、ＩＩＲ（イソブチレンイソブレン共重合体）等の場合、網目構造などの分子構造に由来して、滑剤を添加しても滑剤がライナー表面にブリードせず、滑剤によるキャップの締めトルク、開栓トルクを調節できない状況にある。
特開２００２−３３２０５９号公報 特開２００２−１０４４８５号公報 特開２００６−２７４０５６号公報 特開２００７−１１９５２８号公報 Accordingly, various liner materials with improved barrier properties against oxygen and carbon dioxide are provided (see, for example, Patent Documents 2 to 4). However, these liner materials have a drawback that the cap is difficult to close and difficult to open because of a large friction coefficient, and there is a problem in the performance of the cap. Further, for example, in the case of IBS (polystyrene-polyisobutylene-polystyrene block copolymer), IIR (isobutylene isobrene copolymer) and the like that are currently being developed as liner materials having good basria properties, molecular structures such as a network structure Therefore, even if a lubricant is added, the lubricant does not bleed onto the liner surface, and the cap tightening torque and the opening torque due to the lubricant cannot be adjusted.
JP 2002-332059 A JP 2002-104485 A JP 2006-274056 A JP 2007-119528 A

上記のように従来のキャップは、開栓性とガスバリア性の両方を同時に満足するものはなく、両者は相反する関係にあり、何れかを犠牲にしなければならず、両性能を同時に満足するものは未だ見出されていない。
本発明は、上記実情に鑑み創案されたものであって、開栓トルクを増大させずにガスバリア性を向上させることができ、開栓性及びガスバリア性とも優れたライナー構造を有するキャップを提供することを目的とする。 As mentioned above, there is no conventional cap that satisfies both the opening and gas barrier properties at the same time, both are in a contradictory relationship, and either one must be sacrificed and both performances are satisfied at the same time. Has not yet been found.
The present invention was devised in view of the above circumstances, and can provide a cap having a liner structure that can improve gas barrier properties without increasing the opening torque and that has both excellent opening properties and gas barrier properties. For the purpose.

上記問題点を解決する本発明の請求項１に記載の容器用のキャップは、キャップ天壁内面にライナーが装着された容器用のキャップであって、上記ライナーは、少なくとも容器口頂部の厚さ方向外側寄りの箇所に接する部分が滑り性のよい第１ライナー材で形成されている第１ライナー部と、容器口開口部の全面を覆い且つ容器口頂部の厚さ方向内側寄りの箇所に接する部分が前記第１ライナー材よりもガスバリア性の高い第２ライナー材で形成されている第２ライナー部からなることを特徴とするものである。   The container cap according to claim 1 of the present invention for solving the above problems is a container cap having a liner attached to the inner surface of the cap top wall, and the liner has at least the thickness of the top of the container mouth. A portion in contact with a position closer to the outer side in the direction covers the first liner part formed of the first liner material having good slipperiness, and covers the entire surface of the container mouth opening and touches a position closer to the inner side in the thickness direction of the container mouth top. The portion includes a second liner portion formed of a second liner material having a gas barrier property higher than that of the first liner material.

請求項２に記載の発明は、請求項１に記載のキャップにおいて、前記第１ライナー部は、容器口頂部の厚さ方向外側寄りの箇所に接する部分が厚肉環状に形成された厚肉環状部となっており、該厚肉環状部から内方に延びてキャップ天壁内面を覆う部分が薄肉膜状に形成された薄肉円盤状部となっており、該薄肉円盤状部の内方側に前記第２ライナー部が層状に形成されていることを特徴とするものである。
また、請求項３に記載の発明は、請求項１又は２に記載のキャップにおいて、前記第２ライナー部の外周縁直径Ｄ１は、当該キャップを装着する容器口頂部の内径をＤ２、容器口頂部の厚さをｔとした場合、Ｄ２＜Ｄ１≦（Ｄ２＋ｔ）の関係を満たすようになっていることを特徴とするものである。
さらに、請求項４に記載の発明は、請求項２又は３に記載のキャップにおいて、前記第１ライナー部は、キャップ天壁内面に圧縮成形により前記厚肉環状部と前記薄肉円盤状部とを成形し、前記第２ライナー部を前記第１ライナー部の前記薄肉円盤状部の内方側に圧縮成形により形成してなることを特徴とするものである。 According to a second aspect of the present invention, in the cap according to the first aspect, the first liner portion has a thick annular shape in which a portion in contact with a portion closer to the outer side in the thickness direction of the container mouth top portion is formed in a thick annular shape. The portion extending inward from the thick annular portion and covering the inner surface of the cap top wall is a thin disc-like portion formed in a thin film shape, and the inner side of the thin disc-like portion Further, the second liner portion is formed in a layer shape.
The invention according to claim 3, in the cap according to claim 1 or 2, wherein the outer periphery diameter D 1 of the second liner section, D 2 the inner diameter of the container mouth top for mounting the cap, the container When the thickness of the top of the mouth is t, the relationship of D 2 <D 1 ≦ (D 2 + t) is satisfied.
Furthermore, the invention according to claim 4 is the cap according to claim 2 or 3, wherein the first liner portion is formed by compressing the inner wall of the cap with the thick annular portion and the thin disc-shaped portion. The second liner portion is formed by compression molding on the inner side of the thin disk-shaped portion of the first liner portion.

請求項１の発明は、容器口開口部を全面を覆い且つ容器口頂部の厚さ方向内側寄りの箇所に接する部分がガスバリア性の高い第２ライナー材で形成されているので、容器口頂部と圧着している第１ライナー部へのガス透過経路を第２ライナー部で遮蔽することができる。したがって、容器口頂部とライナーとの圧着部でのライナー材を介してのガスの透過を防ぐとともに、キャップ天壁を通してのガスの透過も防ぐことができ、高度のガスバリア性を得ることができる。しかも、第２ライナー部が容器口頂部と圧接するのは、容器口頂部の内側寄りの一部であるから、第２ライナー部が摩擦係数の高い材料で形成されていても、開栓性に与える影響は少なく、良好な開栓性を維持することができる。   In the first aspect of the invention, since the portion covering the entire surface of the container mouth and in contact with the portion closer to the inner side in the thickness direction of the top of the container mouth is formed of the second liner material having a high gas barrier property, The gas permeation path to the first liner part being crimped can be shielded by the second liner part. Therefore, it is possible to prevent gas permeation through the liner material at the pressure-bonding portion between the container mouth top and the liner, and also prevent gas permeation through the cap top wall, thereby obtaining a high level of gas barrier properties. In addition, since the second liner portion is in pressure contact with the container top, it is part of the inner side of the container top, so that even if the second liner is formed of a material having a high coefficient of friction, it can be opened. It has little influence and can maintain a good openability.

請求項２の発明は、請求項１の発明の効果に加えて、第１ライナー部及び第２ライナー部とも少なくとも容器口頂部に接する部分が厚肉環状部となっているので、最もガス透過及び内容液漏洩に影響を与える部分のバリア性をより高度に確保することができ、且つガス透過率の少ない天壁パネル面に接する部分を薄肉円盤状に形成したので、経済的に且つ効果的にガスバリア性を確保することができる。また、第１ライナー部は薄肉円盤状部を有しているので、第１ライナー部を安定してキャップ天壁内面に成形装着することができ、且つ第２ライナー部の成形も容易である。
また、請求項３の発明は、第２ライナー部の外周縁直径Ｄ１は、当該キャップを装着する容器口頂部の内径をＤ２、容器口頂部の厚さをｔとした場合、Ｄ２＜Ｄ１≦（Ｄ２＋ｔ）の関係を満たすようにすることによって、請求項１及び請求項２に記載の効果をより効率よく達成することができる。第２ライナー部の外周縁直径Ｄ１がＤ１＞（Ｄ２＋ｔ）の関係になると、容器口頂部と第２ライナー部の接触面積が増大し、ガスバリア性は高めることができても開栓トルクが増大し、逆にＤ２＞Ｄ１であると、後述するガス透過経路Ａを有効に遮断することができず、開栓性は向上してもガスバリア性の向上を図ることができないので、上記範囲が好ましい。
さらに、請求項４の発明によれば、上記キャップのライナーをより確実に成形することができる。 In the invention of claim 2, in addition to the effect of the invention of claim 1, since both the first liner part and the second liner part are at least a part in contact with the top of the container, it is a thick annular part. The barrier property of the part that affects the liquid leakage can be secured to a higher level, and the part in contact with the top wall panel surface with low gas permeability is formed in a thin disk shape, so it is economical and effective. Gas barrier properties can be secured. In addition, since the first liner portion has a thin disk-shaped portion, the first liner portion can be stably molded and attached to the inner surface of the cap top wall, and the second liner portion can be easily molded.
Further, the invention of claim 3, the outer periphery diameter D 1 of the second liner section has an inner diameter of D 2 of the container mouth top for mounting the cap, if the thickness of the container mouth top was t, D 2 < By satisfying the relationship of D 1 ≦ (D 2 + t), the effects described in claim 1 and claim 2 can be achieved more efficiently. When the outer periphery diameter D 1 of the second liner section becomes D 1> relationship (D 2 + t), the contact area increases the container mouth top portion and the second liner section, be able to gas barrier properties improve unplugging If the torque increases and conversely D 2 > D 1 , the gas permeation path A, which will be described later, cannot be effectively cut off, and the gas barrier property cannot be improved even if the plug opening property is improved. The above range is preferable.
Furthermore, according to the invention of claim 4, the liner of the cap can be more reliably formed.

以下、本発明の実施形態を図面を基に詳細に説明する。
本発明の実施形態を説明する前に、従来のライナー付きキャップにおけるガスの透過構造について考察する。図４は、従来のライナーをキャップ天壁内面に装着した合成樹脂製のネジキャップ１Ａをボトルの口部に螺合して密封した状態の断面図を示している。図において、ライナー１０Ａは、容器口頂部３１に圧接している肉厚環状部１０Ａ−１とその内周面に容器開口部を覆う肉薄円盤部１０Ａ−２を有して、キャップ本体２の天壁３の内面に装着されている。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
Before describing the embodiment of the present invention, a gas permeation structure in a conventional cap with a liner will be considered. FIG. 4 shows a cross-sectional view of a state in which a screw cap 1A made of a synthetic resin having a conventional liner attached to the inner surface of the cap top wall is screwed into a bottle mouth and sealed. In the figure, the liner 10 </ b> A has a thick annular portion 10 </ b> A- 1 that is in pressure contact with the container top 31, and a thin disk portion 10 </ b> A- 2 that covers the container opening on the inner peripheral surface thereof. It is attached to the inner surface of the wall 3.

このような合成樹脂キャップ１０Ａにおいて、容器口部３０に螺合して容器口頂部３１にライナーが圧着した状態での容器内外とのガスの透過経路は、ライナー１０Ａの肉厚環状部１０Ａ−１と容器口頂部３１との接触面間及び肉厚環状部１０Ａ−１内を通ってキャップ本体２の筒壁４の内周面と容器口部３０の外周面の螺合隙間に通じる経路Ａと、ライナー肉薄円盤部１０Ａ−２及びキャップ天壁３のパネル面を貫通して外部に通じる経路Ｂである。一方、内容液の漏洩経路は、ライナーと容器口頂部との接触面間を通ってキャップの筒壁内周面と容器口部外周面の螺合隙間へと通じる経路のみである。また、蓋の開栓及び閉栓トルクへの影響は、容器口頂部とライナーとの接触摩擦力、特に密封力に影響して強く圧着している容器口頂部外周面と該箇所に圧着しているライナーとの摩擦力によるところが最も大きい。   In such a synthetic resin cap 10A, the gas permeation path between the inside and outside of the container when the liner is screwed to the container mouth 30 and the liner is pressure-bonded to the container mouth top 31 is the thick annular portion 10A-1 of the liner 10A. And a path A that passes between the contact surfaces of the container mouth top portion 31 and the thick annular portion 10A-1 and leads to a screwing gap between the inner peripheral surface of the cylindrical wall 4 of the cap body 2 and the outer peripheral surface of the container mouth portion 30. This is a path B that passes through the panel surface of the liner thin disk portion 10A-2 and the top wall 3 of the cap and communicates with the outside. On the other hand, the leakage path of the content liquid is only the path that passes between the contact surfaces of the liner and the top of the container mouth and leads to the screwing clearance between the inner peripheral surface of the cap wall and the outer peripheral surface of the container mouth. Moreover, the influence on the opening and closing torque of the lid is that the contact frictional force between the container top and the liner, particularly the sealing force is exerted, and the outer periphery of the container top that is strongly pressed and the portion is pressed. It is the largest due to the frictional force with the liner.

以上のことを考慮すると、ライナーのキャップパネル面に接触する部分をガスバリア性の高い材料で形成することによって、上記経路Ｂを遮断することができる。また、容器口頂部と接触する部分もガスバリア性の材料で形成すれば、ガス透過経路Ａによるガス透過も防ぐことができる。しかしながら、その場合開栓トルクが高くなり開栓性を阻害する。本発明者は、前記ガス透過経路Ａについて、ライナ−１０の肉厚環状部１０Ａ−１が容器口頂部に追従して確実に圧着されておれば、該圧着面を通してのガス透過量はごく僅かであり、多くはライナー材内部を通過しての透過であるという知見を基に、開栓性を阻害しないでガスバリア性を高める方策について種々研究した結果、容器口頂部に強く圧着する部分を柔らかく滑り性のよいライナー材で形成し、且つ該ライナー材の内部を透過するガスを遮断することができれば、開栓性を阻害しないでガスバリア性を高めることができることを着想した。そして、種々実験した結果、ライナーの少なくとも容器口頂部の内周面寄りの箇所に接触する部分をガスバリア性の高いライナー材で形成して、それに続く容器口頂部の中央部から外周縁部に接触する部分を柔らく滑り性がよいライナー材で構成すれば、ガスの透過経路Ａ及び内容液の漏洩経路を効果的に遮断することができ、且つ開栓性も良好に維持できることを見出し本発明に到達したものである。   Considering the above, the path B can be blocked by forming the portion of the liner that contacts the cap panel surface with a material having a high gas barrier property. Further, if the portion in contact with the top of the container is also formed of a gas barrier material, gas permeation through the gas permeation path A can be prevented. However, in that case, the opening torque becomes high and the opening performance is hindered. If the thick annular portion 10A-1 of the liner 10 is securely crimped to the top of the container for the gas permeation path A, the inventor has very little gas permeation through the crimping surface. As a result of various researches on measures to increase the gas barrier property without impairing the openability based on the knowledge that most of the permeation passes through the inside of the liner material, the part that is strongly pressure-bonded to the top of the container is softened. It was conceived that the gas barrier property can be improved without hindering the plug-opening property if it is formed of a liner material having good slipperiness and can block the gas that permeates the inside of the liner material. As a result of various experiments, at least a portion of the liner that contacts the portion near the inner peripheral surface of the container top is formed of a liner material having a high gas barrier property, and then contacts the outer peripheral edge from the center of the container top. The present invention finds that if the portion to be made is made of a liner material that is soft and has good slidability, the gas permeation path A and the leakage path of the content liquid can be effectively blocked, and the openability can be maintained well. Has reached

図１は、本実施形態に係るキャップをボトルに装着した断面を示し、図２はその要部を反転して拡大した状態で示したものである。図において、１はキャップであり、本実施形態では合成樹脂製ネジキャップ本体（以下、単にキャップ本体という）２とライナー１０で構成されている。キャップ本体２は、天壁３、筒壁４、タンパーエビデントバンド５を有しているが、その構造は任意の従来のものが採用でき特に限定されないので、その詳細な構成の説明は省略する。ライナー１０はキャップ本体２の天壁３の内面に一体に装着され、図示のように、キャップ１が容器の口部３０に螺着された状態で、ライナー１０の外周部近傍と容器口頂部３１が圧着され、密封が図れるようになっている。   FIG. 1 shows a cross-section in which a cap according to this embodiment is attached to a bottle, and FIG. 2 shows the main part in an inverted and enlarged state. In the figure, reference numeral 1 denotes a cap, which is composed of a synthetic resin screw cap body (hereinafter simply referred to as a cap body) 2 and a liner 10 in this embodiment. The cap body 2 has a top wall 3, a cylindrical wall 4, and a tamper-evidence band 5. However, any conventional structure can be adopted and the structure is not particularly limited. . The liner 10 is integrally attached to the inner surface of the top wall 3 of the cap body 2, and as shown in the figure, in the state where the cap 1 is screwed to the mouth portion 30 of the container, the vicinity of the outer peripheral portion of the liner 10 and the container top portion 31. Is pressure-bonded so that it can be sealed.

本発明では、上記ライナー１０が、容器口頂部３１の少なくとも中央より外側に接する部分が滑り性のよい第１ライナー材で形成されている第１ライナー部１１と、容器口開口部の全面を覆い且つ容器口頂部の中央より内側に接する部分が前記第１ライナー材よりもガスバリア性の高い第２ライナー材で形成された第２ライナー部１２とから構成されている。本実施形態では、前記第１ライナー部１１は、図１及び図２に示すように、容器口頂部３１の外周面側から少なくとも容器口頂部幅の１／２幅以上に接する部分が厚肉環状に形成された厚肉環状部１１−１となっており、該厚肉環状部から内方に延びてキャップ天壁パネル内面を覆う部分が薄肉パネル状に形成された薄肉円盤状部１１−２となっており、該薄肉円盤状部１１−２の内方側に前記第２ライナー部１２が層状に形成されている。しかしながら、第１ライナー部の薄肉円盤状部１１−２は必ずしも形成する必要はなく、厚肉環状部１１−１のみでリング状に構成してもよい。その場合は、第２ライナー部１２は、直接キャップの天壁内面に貼着される。   In the present invention, the liner 10 covers the entire surface of the container mouth opening and the first liner part 11 formed of the first liner material having a good sliding property at least a portion of the container mouth top 31 that contacts the outside of the center. And the part which touches the inner side from the center of a container mouth top part is comprised from the 2nd liner part 12 formed with the 2nd liner material whose gas barrier property is higher than the said 1st liner material. In the present embodiment, as shown in FIG. 1 and FIG. 2, the first liner portion 11 has a thick annular portion at a portion in contact with at least a half width or more of the width of the container top from the outer peripheral surface side of the container top 31. A thin disk-shaped part 11-2 in which a portion extending inward from the thick annular part and covering the inner surface of the cap top wall panel is formed in a thin panel shape. The second liner portion 12 is formed in layers on the inner side of the thin disk-shaped portion 11-2. However, the thin disk-shaped part 11-2 of the first liner part does not necessarily have to be formed, and may be configured in a ring shape only by the thick annular part 11-1. In that case, the second liner portion 12 is directly attached to the inner surface of the top wall of the cap.

第１ライナー部１１は比較的柔らく変形し易いゴム状の材料で形成され、その厚肉環状部１１−１が、図１に示すように、キャップ１を容器口部３０に螺合した状態で少なくとも容器口頂部の幅（肉厚）をｔとすると、外周側から（１／２）ｔ以上容器口頂部に圧接し、且つ該容器口頂部から延びて容器口外周面に所定高さｈ（略０．５〜４ｍｍ）圧接するように、断面略鉤状の肉厚環状に形成され、キャップ１を容器口部３０に巻締することによって、図１に示すように断面略鉤状が容器口部の形状に沿って変形して、容器口頂部３１から外周面上部にかけて圧接して、容器を密封する機能を果たす。したがって、このキャップにおける内容液に対する密封構造は、第１ライナー部１１が容器口頂部から外周面上部にかけて圧接することによって構成される。薄肉円盤状部１１−２は、厚肉環状部１１−１の内周縁からキャップ本体の天壁内面に接するように段差面となっている円盤状に形成され、該段差面に第２ライナー部１２が接着されている。   The first liner portion 11 is formed of a rubber-like material that is relatively soft and easily deformed, and the thick annular portion 11-1 is screwed into the container mouth portion 30 as shown in FIG. When at least the width (thickness) of the container mouth is t, the container mouth is pressed against the container mouth from the outer periphery side by (1/2) t or more, and extends from the container mouth to a predetermined height h on the container mouth outer surface. (Approx. 0.5 to 4 mm) It is formed in a thick annular shape with a substantially bowl-shaped cross section so as to come into pressure contact, and by winding the cap 1 around the container mouth portion 30, a substantially bowl-shaped cross section is obtained as shown in FIG. It deforms along the shape of the container mouth and presses from the container mouth top 31 to the upper part of the outer peripheral surface to fulfill the function of sealing the container. Therefore, the sealing structure with respect to the content liquid in the cap is configured by the first liner portion 11 being pressed from the top of the container mouth to the upper portion of the outer peripheral surface. The thin disk-shaped portion 11-2 is formed in a disk shape having a step surface so as to contact the inner wall of the cap body from the inner peripheral edge of the thick annular portion 11-1, and the second liner portion is formed on the step surface. 12 is adhered.

第２ライナー部１２は、図１及び図２に示すように、その外周縁から後述する所定幅が第１ライナー部の薄肉円盤状部１１−２に装着された状態で肉厚環状部１１−１と略同じ厚さとなるように厚肉に形成されて容器口頂部の中央より内側に圧接する厚肉環状部分１２−１となっており、その内側部が薄肉円盤状部１２−２となっており、第１ライナー部１１の環状薄肉部１１−２と層状に重なった状態に一体化されている。第２ライナー部１２の厚肉環状部分１２−１は、前記ガス透過経路Ａを遮断する機能を果たすものであり、ガスバリア性の高いライナー材で形成された厚肉環状部分１２−１が少なくとも容器口頂部の内側の一部と環状に圧接することによって、容器口頂部とライナーとの圧接部のライナーに通じる容器内からの入口部がガスバリア材で遮蔽されることになるので、容器口頂部と圧接する部分全体をガスバリア材で構成しなくてもガス透過経路Ａからのガスの透過を効果的に防止することができる。   As shown in FIGS. 1 and 2, the second liner portion 12 has a thick annular portion 11-in a state in which a predetermined width, which will be described later, is attached to the thin disk-shaped portion 11-2 of the first liner portion. 1 is a thick annular portion 12-1, which is formed to be thick so as to be approximately the same thickness as 1 and is pressed inward from the center of the container mouth top, and the inner portion thereof is a thin disk-shaped portion 12-2. It is integrated with the annular thin portion 11-2 of the first liner portion 11 in a layered state. The thick annular portion 12-1 of the second liner portion 12 functions to block the gas permeation path A, and the thick annular portion 12-1 formed of a liner material having a high gas barrier property is at least a container. Since the inlet part from the container leading to the liner of the pressure contact part between the container mouth top part and the liner is shielded by the gas barrier material by pressure-contacting with a part inside the mouth top part in an annular manner, The permeation of the gas from the gas permeation path A can be effectively prevented without configuring the entire part to be in pressure contact with the gas barrier material.

したがって、第２ライナー部の厚肉部は必ずしも容器口頂部全面に圧接する必要はなく、容器口頂部の内側１／２幅以下、少なくとも環状に所定幅だけ圧接すれば十分にその機能を果たすことができる。本実施形態では、第２ライナー部１２の外周縁直径Ｄ１は、当該キャップを装着する容器口頂部の内径をＤ２、容器口頂部の厚さをｔとした場合、Ｄ２＜Ｄ１≦（Ｄ２＋ｔ）の関係を満たすようになっている。第２ライナー部の外周縁直径Ｄ１がＤ１＞（Ｄ２＋ｔ）の関係になると、容器口頂部と第２ライナー部の接触面積が増大し、ガスバリア性は高めることができても開栓トルクが増大し、上記の目的を達成することはできない。逆にＤ２＞Ｄ１であると、前記ガス透過経路Ａを有効に遮断することができず、開栓性は向上してもガスバリア性の向上を図ることができず、上記目的は達成できない。 Therefore, the thick wall portion of the second liner portion does not necessarily need to be in pressure contact with the entire top of the container mouth, and can function sufficiently if it is in contact with the inner half width of the top of the container at least within a predetermined width at least in a ring shape. Can do. In this embodiment, the outer periphery diameter D 1 of the second liner section 12 has an inner diameter of D 2 of the container mouth top for mounting the cap, if the thickness of the container mouth top was t, D 2 <D 1 ≦ The relationship (D 2 + t) is satisfied. When the outer periphery diameter D 1 of the second liner section becomes D 1> relationship (D 2 + t), the contact area increases the container mouth top portion and the second liner section, be able to gas barrier properties improve unplugging The torque increases and the above objective cannot be achieved. On the other hand, if D 2 > D 1 , the gas permeation path A cannot be effectively blocked, and the gas barrier property cannot be improved even if the plug-opening property is improved, so that the above object cannot be achieved. .

上記第１ライナー部及び第２ライナー部を構成する第１ライナー材及び第２ライナー材としては、例えば次の合成樹脂が採用できる。
第１ライナー材：
・オレフィン系
低密度ポリエチレン
線状低密度ポリエチレン
・スチレン−エチレン−ブタジエン−スチレン（ＳＥＢＳ）エラストマー
・エチレンビニルアルコール共重合体
・ポリブテン−１
・エチレン−ブテン−１共重合体
・プロピレン−ブテン−１共重合体
・エラストマー系
エチレン−プロピレン−ジエン共重合体エラストマー
水素化エチレン−プロピレン−ジエン共重合体エラストマー
スチレン−ブタジエン−スチレン（ＳＢＳ）エラストマー
スチレン−イソプレン−スチレン（ＳＩＳ）エラストマー
スチレン−エチレン−プロピレン−スチレン（ＳＥＰＳ）エラストマー
第２ライナー材（バリア材）：
・ブチルゴム（ＩＩＲ）
・エチレンビニルアルコール共重合体（ＥＶＯＨ）
・スチレン−イソブチレン−スチレン（ＳＩＢＳ）
なお、第２ライナー材は、第１ライナー材と接着しやすくするために、少量の第１ライナー材とのブレンドで使用するのが望ましい。 As the first liner material and the second liner material constituting the first liner portion and the second liner portion, for example, the following synthetic resins can be employed.
First liner material:
・ Olefin-based low-density polyethylene Linear low-density polyethylene ・ Styrene-ethylene-butadiene-styrene (SEBS) elastomer ・ Ethylene vinyl alcohol copolymer ・ Polybutene-1
・ Ethylene-butene-1 copolymer ・ Propylene-butene-1 copolymer ・ Elastomer-based ethylene-propylene-diene copolymer elastomer Hydrogenated ethylene-propylene-diene copolymer elastomer Styrene-butadiene-styrene (SBS) elastomer Styrene-isoprene-styrene (SIS) elastomer Styrene-ethylene-propylene-styrene (SEPS) elastomer Second liner material (barrier material):
・ Butyl rubber (IIR)
・ Ethylene vinyl alcohol copolymer (EVOH)
・ Styrene-isobutylene-styrene (SIBS)
The second liner material is desirably used in a blend with a small amount of the first liner material in order to facilitate adhesion with the first liner material.

図３は、本発明の他の実施形態に係るキャップを容器（ボトル）に巻締した状態の断面を示している。図１及び図２に示すものと同じ構成の部材に対しては図１及び図２と同一符号を付し、相違点のみについて説明する。
本実施形態では、図１に示す実施形態のキャップと比較して、ライナー１０の第１ライナー部１１の厚肉環状部１１−１の内周縁１１−３と、第２ライナー部１２の厚肉環状部１２−１の外周縁１２−３との間に直径方向に若干の隙間を介して、装着されている点が相違している。該隙間はキャップの性能上からは必ずしも設ける必要はないが、ライナーの成形上の容易さから設けたものである。 FIG. 3 shows a cross section of a state in which a cap according to another embodiment of the present invention is wound around a container (bottle). 1 and 2 are denoted by the same reference numerals as those shown in FIGS. 1 and 2, and only differences will be described.
In this embodiment, compared with the cap of the embodiment shown in FIG. 1, the inner peripheral edge 11-3 of the thick annular portion 11-1 of the first liner portion 11 of the liner 10 and the thick wall of the second liner portion 12. It is different in that it is mounted between the outer peripheral edge 12-3 of the annular portion 12-1 with a slight gap in the diameter direction. The gap is not necessarily provided from the viewpoint of the performance of the cap, but is provided for the ease of molding the liner.

上記隙間は必ず容器口頂部の上に位置するように設けられるので、隙間があっても内容液密封性・ガスバリア性の性能になんら影響を与えることがなく、むしろ第１ライナー部の厚肉環状部と第２ライナーの厚肉環状部との境界が確実で両者が干渉することがないので、第１ライナー部による開栓トルクの低減効果が確実に維持されるとともに、第２ライナー部によるガスバリア効果も確実に維持される効果がある。   Since the gap is always located on the top of the container mouth, even if there is a gap, it does not affect the performance of the liquid-tightness and gas barrier properties of the contents. Since the boundary between the portion and the thick annular portion of the second liner is reliable and they do not interfere with each other, the effect of reducing the opening torque by the first liner portion is reliably maintained, and the gas barrier by the second liner portion is maintained. The effect is also reliably maintained.

図１又は図３に示すライナー１０は、予め第１ライナー部と第２ライナー部を別途成形して一体に構成されたものを、キャップ本体２に嵌合して天壁３の内方側に装着することも可能であるが、製造工程の効率化の点でキャップ本体に天壁内方側を第１ライナー部の成形の型として、直接キャップ本体の内側に溶融樹脂を供給して、第１ライナー部及び第２ライナー部を順に圧縮成形又は射出成形によって形成するのが望ましい。   A liner 10 shown in FIG. 1 or FIG. 3 is formed by integrally forming a first liner portion and a second liner portion in advance, and is fitted to the cap body 2 so as to be inward of the top wall 3. Although it is possible to install, in order to improve the efficiency of the manufacturing process, the inner side of the top wall is used as a mold for forming the first liner portion on the cap body, and the molten resin is supplied directly to the inside of the cap body, It is desirable to form the first liner portion and the second liner portion in order by compression molding or injection molding.

ライナーの成形方法としては、例えば、樹脂キャップの場合、予め圧縮成形又は射出成形にて成形したキャップ本体２を倒立状態に載置し、適宜供給手段で溶融状態の第１ライナー材からなる合成樹脂塊をキャップ天壁内方側に供給した後、所要形状の型押し金型工具により押圧してまず第１ライナー部を成形する。型押し工具としては、例えば第１ライナー部の中央領域の薄肉円板状部を規定するセンターパンチと厚肉環状部を規定する外側スリーブとの組合せからなる第１の型押し工具を採用し、該第１の型押し工具により第１ライナー部を成形する。次に、このように成形された第１ライナー部の上に第２ライナー材よりなる第２ライナー部を第２の型押し工具を使用して圧縮成形する。第２ライナー部を成形する第２の型押し工具は、第１の型押し工具と同様に第２ライナー部の形状に応じて薄肉円盤状部を規定するセンターパンチ部と薄肉環状部を規定する外側スリーブとの組合せからなるが、第２ライナー部の成形に際して第２ライナ−の厚肉環状部を形成する第２ライナー材が既に成形されている第１ライナー部の厚肉環状部に成形圧によりはみ出して第１ライナー部の厚肉環状部を変形させないように、第２ライナー材の第１ライナー部の厚肉環状部への流出を完全に規制することが重要である。それを確実に行うには、例えば第２ライナー部の厚肉環状部の厚さ方向外周縁を規定する環状の規制部材を前記外側スリーブの外周部に一体に設けるか、又は別部材として設けて、該規制部材を第１ライナー部の厚肉環状部の厚さ方向内周縁と接するように位置させた状態で成形して、第２ライナー材が第１ライナー部の厚肉環状部へ影響を及ばさないようにするのが望ましい。その場合、図３に示すように、成形されたライナー１０は第１ライナー部の厚肉環状部１２−１の内周縁と第２ライナー部１２の厚肉環状部の外周縁１２−３との間に、前記規制部材由来の僅かな環状隙間が生じる事となる。
なお、上記の場合圧縮成形によって第１ライナー部及び第２ライナー部を成形する場合について説明したが、射出成形する場合も同様のことが言える。 As a method for molding the liner, for example, in the case of a resin cap, the cap body 2 molded in advance by compression molding or injection molding is placed in an inverted state, and a synthetic resin made of a first liner material in a molten state by an appropriate supply means After the lump is supplied to the inner side of the cap top wall, the first liner portion is first formed by pressing with a stamping die tool of a required shape. As the embossing tool, for example, a first embossing tool composed of a combination of a center punch that defines a thin disc-shaped portion in the central region of the first liner portion and an outer sleeve that defines a thick annular portion is employed, The first liner part is formed by the first embossing tool. Next, the second liner portion made of the second liner material is compression-molded on the first liner portion formed in this manner using a second embossing tool. The second embossing tool for forming the second liner portion defines the center punch portion and the thin annular portion that define the thin disk-shaped portion according to the shape of the second liner portion, similarly to the first embossing tool. Although it is a combination with the outer sleeve, a molding pressure is applied to the thick annular portion of the first liner portion where the second liner material that forms the thick annular portion of the second liner is already molded when the second liner portion is molded. It is important to completely restrict the outflow of the second liner material to the thick annular portion of the first liner portion so that the thick liner portion of the first liner portion is not deformed. In order to ensure that, for example, an annular regulating member that defines the outer peripheral edge in the thickness direction of the thick annular portion of the second liner portion is provided integrally with the outer peripheral portion of the outer sleeve or as a separate member. The regulating member is molded in a state of being in contact with the inner peripheral edge in the thickness direction of the thick annular portion of the first liner portion, and the second liner material affects the thick annular portion of the first liner portion. It is desirable not to reach. In that case, as shown in FIG. 3, the molded liner 10 has an inner peripheral edge of the thick annular portion 12-1 of the first liner portion and an outer peripheral edge 12-3 of the thick annular portion of the second liner portion 12. In the meantime, a slight annular gap derived from the restriction member is generated.
Although the case where the first liner portion and the second liner portion are formed by compression molding in the above case has been described, the same applies to the case of injection molding.

本発明の容器用のキャップは、優れたガスバリア性及び開栓性を有するライナーを備え、合成樹脂製キャップ又は金属製キャップに適用でき、合成樹脂製のボトルやパウチのスパウト等のキャップとして、あるいはガラス製容器、金属製容器のキャップとして利用できる。   The cap for a container of the present invention comprises a liner having excellent gas barrier properties and openability, and can be applied to a synthetic resin cap or a metal cap, as a cap such as a synthetic resin bottle or a pouch spout, or It can be used as a cap for glass containers and metal containers.

本発明の実施形態に係るキャップを容器口に巻締した状態での断面図である。It is sectional drawing in the state which wound the cap which concerns on embodiment of this invention around the container opening. 図１の要部の反転拡大図である。FIG. 2 is a reverse enlarged view of a main part of FIG. 1. 本発明の他の実施形態に係るキャップを容器口に巻締した状態での断面図である。It is sectional drawing in the state which wound the cap which concerns on other embodiment of this invention around the container opening. 従来のライナー付きキャップを容器口に巻締した状態での断面図である。It is sectional drawing in the state which wound the conventional cap with a liner around the container opening.

符号の説明Explanation of symbols

１ キャップ ２ キャップ本体
３ 天壁 ４ 筒壁
５ タンパーエビデントバンド ６ 環状突条
１０ ライナー １１ 第１ライナー部
１１−１ 厚肉環状部 １１−２ 薄肉円盤状部
１１−３ 内周縁 １２ 第２ライナー部
１２−１ 厚肉環状部 １２−２ 薄肉円盤状部
１２−３ 外周縁 ３０ 容器口部
３１ 容器口頂部
Ｄ１ 第２ライナー部の外周縁直径
Ｄ２ 容器口頂部の内径
ｔ 容器口部厚さ（幅） DESCRIPTION OF SYMBOLS 1 Cap 2 Cap main body 3 Top wall 4 Cylindrical wall 5 Tamper evident band 6 Annular ridge 10 Liner 11 1st liner part 11-1 Thick annular part 11-2 Thin disk part 11-3 Inner peripheral edge 12 2nd liner Part 12-1 Thick annular part 12-2 Thin disk-like part 12-3 Outer peripheral edge 30 Container mouth part 31 Container top part D 1 Outer peripheral diameter of the second liner part D 2 Inner diameter of container top part t Container mouth part thickness Width

Claims (4)

キャップ天壁内面にライナーが装着された容器用のキャップであって、上記ライナーは、少なくとも容器口頂部の厚さ方向外側寄りの箇所に接する部分が滑り性のよい第１ライナー材で形成されている第１ライナー部と、容器口開口部の全面を覆い且つ容器口頂部の厚さ方向内側寄りの箇所に接する部分が前記第１ライナー材よりもガスバリア性の高い第２ライナー材で形成されている第２ライナー部からなることを特徴とする容器用のキャップ。   A cap for a container in which a liner is mounted on the inner surface of the top wall of the cap, wherein the liner is formed of a first liner material having a good sliding property at least at a portion in contact with the outer side in the thickness direction of the top of the container mouth. A first liner portion that covers the entire surface of the opening of the container mouth and a portion in contact with a portion closer to the inside in the thickness direction of the top of the container mouth is formed of a second liner material having a higher gas barrier property than the first liner material. A container cap characterized by comprising a second liner portion. 前記第１ライナー部は、容器口頂部の厚さ方向外側寄りの箇所に接する部分が厚肉環状に形成された厚肉環状部となっており、該厚肉環状部から内方に延びてキャップ天壁内面を覆う部分が薄肉膜状に形成された薄肉円盤状部となっており、該薄肉円盤状部の内方側に前記第２ライナー部が層状に形成されている請求項１に記載の容器用のキャップ。   The first liner portion is a thick annular portion in which a portion in contact with a portion on the outer side in the thickness direction of the container mouth top portion is formed in a thick annular shape, and extends inward from the thick annular portion to cap The portion covering the inner surface of the top wall is a thin disk-shaped portion formed in a thin film shape, and the second liner portion is formed in layers on the inner side of the thin disk-shaped portion. Cap for container. 前記第２ライナー部の外周縁直径Ｄ１は、当該キャップを装着する容器口頂部の内径をＤ２、容器口頂部の厚さをｔとした場合、Ｄ２＜Ｄ１≦（Ｄ２＋ｔ）の関係を満たすようになっている請求項１又は２に記載の容器用のキャップ。 The outer periphery diameter D 1 of the second liner section, D 2 the inner diameter of the container mouth top for mounting the cap, if the thickness of the container mouth top was t, D 2 <D 1 ≦ (D 2 + t) The cap for containers according to claim 1 or 2, wherein the relationship is satisfied. 前記第１ライナー部は、キャップ天壁内面に圧縮成形により前記厚肉環状部と前記薄肉円盤状部とを成形し、前記第２ライナー部を前記第１ライナー部の前記薄肉円盤状部の内方側に圧縮成形により形成してなる請求項２又は３に記載の容器用のキャップ。   The first liner part is formed on the inner surface of the cap top wall by compression molding the thick annular part and the thin disk-like part, and the second liner part is formed in the thin disk-like part of the first liner part. The cap for containers according to claim 2 or 3 formed by compression molding on the side.
JP2007249559A 2007-09-26 2007-09-26 Cap for container Expired - Fee Related JP4994172B2 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017074623A (en) * 2016-11-29 2017-04-20 ユニバーサル製缶株式会社 Method for manufacturing cap with liner
EP3162729A4 (en) * 2014-06-27 2018-02-28 Nippon Closures Co., Ltd. Metallic cap and manufacturing method therefor
CN110167848A (en) * 2017-02-15 2019-08-23 日本克乐嘉制盖株式会社 Container cover including metal master and synthetic resin liner
JP2020029309A (en) * 2014-06-27 2020-02-27 日本クロージャー株式会社 Metal cap

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60204473A (en) * 1984-02-09 1985-10-16 コルネリス　クンザース　プロダクテン　インダストリィ　ビィ．ヴィ Cap for vessel cover and manufacture thereof
JPH10194309A (en) * 1996-12-26 1998-07-28 Daiwa Can Co Ltd Bottle cap
JP2002068264A (en) * 2000-08-25 2002-03-08 Shibazaki Seisakusho Ltd Cap made of synthetic resin
JP2002104485A (en) * 2000-09-25 2002-04-10 Grand Polymer Co Ltd Cap linear material
JP2002332059A (en) * 2001-05-10 2002-11-22 Toyo Seikan Kaisha Ltd Vessel lid having lubricant drop preventive means
JP2004123216A (en) * 2002-10-07 2004-04-22 Japan Crown Cork Co Ltd Heat-resistant cap
JP2005280799A (en) * 2004-03-30 2005-10-13 Japan Crown Cork Co Ltd Cap with intermediate stopper
JP2006274056A (en) * 2005-03-29 2006-10-12 Mitsubishi Chemicals Corp Thermoplastic elastomer composition for container lid liner and container lid liner
JP2007119528A (en) * 2005-10-25 2007-05-17 Kaneka Corp Composition for cap liner

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60204473A (en) * 1984-02-09 1985-10-16 コルネリス　クンザース　プロダクテン　インダストリィ　ビィ．ヴィ Cap for vessel cover and manufacture thereof
JPH10194309A (en) * 1996-12-26 1998-07-28 Daiwa Can Co Ltd Bottle cap
JP2002068264A (en) * 2000-08-25 2002-03-08 Shibazaki Seisakusho Ltd Cap made of synthetic resin
JP2002104485A (en) * 2000-09-25 2002-04-10 Grand Polymer Co Ltd Cap linear material
JP2002332059A (en) * 2001-05-10 2002-11-22 Toyo Seikan Kaisha Ltd Vessel lid having lubricant drop preventive means
JP2004123216A (en) * 2002-10-07 2004-04-22 Japan Crown Cork Co Ltd Heat-resistant cap
JP2005280799A (en) * 2004-03-30 2005-10-13 Japan Crown Cork Co Ltd Cap with intermediate stopper
JP2006274056A (en) * 2005-03-29 2006-10-12 Mitsubishi Chemicals Corp Thermoplastic elastomer composition for container lid liner and container lid liner
JP2007119528A (en) * 2005-10-25 2007-05-17 Kaneka Corp Composition for cap liner

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3162729A4 (en) * 2014-06-27 2018-02-28 Nippon Closures Co., Ltd. Metallic cap and manufacturing method therefor
EP3603925A1 (en) * 2014-06-27 2020-02-05 Nippon Closures Co., Ltd. Metal cap
JP2020029309A (en) * 2014-06-27 2020-02-27 日本クロージャー株式会社 Metal cap
US10800585B2 (en) 2014-06-27 2020-10-13 Nippon Closures Co., Ltd. Manufacturing method for metal cap
JP2017074623A (en) * 2016-11-29 2017-04-20 ユニバーサル製缶株式会社 Method for manufacturing cap with liner
CN110167848A (en) * 2017-02-15 2019-08-23 日本克乐嘉制盖株式会社 Container cover including metal master and synthetic resin liner
KR20190118550A (en) * 2017-02-15 2019-10-18 니혼 클로져 가부시키가이샤 Container cover with metal body and synthetic resin liner
EP3584192A4 (en) * 2017-02-15 2021-02-24 Nippon Closures Co., Ltd. Container lid provided with metal body and synthetic resin liner
KR102592793B1 (en) * 2017-02-15 2023-10-20 니혼 클로져 가부시키가이샤 Container lid with a metal body and synthetic resin liner

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